Table 1

 Characteristics of the subgroups classified according to serum pepsinogen and Helicobacter pylori antibody status

Group AGroup BGroup CGroup DTotal
*Number of endoscopic examinations.
Pepsinogen statusNormalNormalAtrophicAtrophic
H pylori antibody status++
No of subjects3324213410824436983
    Male226014897133204782
    Female10646453691232201
Age (y) (mean (SD))47.1 (8.1)49.2 (8.3)52.0 (8.5)53.3 (8.8)48.9 (8.5)
Pepsinogen I (mean (SD))54.3 (23.9)73.7 (29.0)41.9 (17.3)35.7 (19.0)57.1 (27.4)
Pepsinogen II (mean (SD))10.1 (7.3)20.6 (12.1)20.3 (6.8)17.9 (7.5)15.4 (10.3)
No of endoscopies* (mean (SD))5.1 (2.0)5.1 (2.0)5.0 (1.9)5.0 (1.9)5.1 (2.0)
Duration of follow up (y) (mean (SD))4.8 (1.6)4.7 (1.7)4.7 (1.7)4.5 (1.7)4.7 (1.7)